body {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

.bg {
    background-image: linear-gradient(rgba(0, 0, 0, .3), rgba(0, 0, 0, .3)), url('1.avif');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    height: 100vh;
    color: white;


}

.box {
    background: black;
    box-shadow: 3px 3px 10px rgba(0, 0, 0, .5);
    padding: 20px 30px;
    font-size: 20px;
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translate(-50%);
    transition: all .5s;
}

.addBox {

    background: black;
    box-shadow: 3px 3px 10px rgba(0, 0, 0, .5);
    padding: 20px 30px;
    font-size: 20px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);

}

.box span {
    background: red;
    padding: 2px 6px;
    border-radius: 50%;
    position: absolute;
    top: -4px;
    right: -4px;
}

.box span:hover {
    cursor: pointer;
}

.btn {
    position: absolute;
    top: 70%;
    padding: 30px 40px;
    background: black;
    left: 1%;
    font-size: 20px;

}

.btn:hover {
    cursor: pointer;
}